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Science 17 November 1995:
Vol. 270. no. 5239, pp. 1193 - 1194
DOI: 10.1126/science.270.5239.1193
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Reports
Negative Xylem Pressures in Plants: A Test of the Balancing
Pressure Technique
N. Michele Holbrook (1) (2),
Michael J. Burns,
Christopher B. Field
Xylem tension was experimentally imposed by centrifugal force to
assess the stability of negative pressures within the xylem and the
estimation of those pressures with a pressure chamber. Balancing
pressure measurements of leaves attached to a spinning branch at the
axis of rotation closely agreed with tensions calculated from the
rotational velocity. This agreement demonstrates that the xylem is
capable of sustaining large negative pressures and directly validates
the balancing pressure technique.
N. M. Holbrook, Department of Biological Sciences, Stanford
University, Stanford, CA 94305, USA.
M. J. Burns, Conductus, Incorporated, 969 West Maude Avenue, Sunnyvale,
CA 94086, USA.
C. B. Field, Department of Plant Biology, Carnegie Institution of
Washington, Stanford, CA 94305, USA.
(1) Present address: Department of Organismic and Evolutionary Biology,
Harvard University, Cambridge, MA 02138, USA.
(2) To whom correspondence should be addressed.
THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
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- S. Jansen, P. Baas, P. Gasson, F. Lens, and E. Smets (2004)
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- Xylem Hydraulics and the Soil-Plant-Atmosphere Continuum: Opportunities and Unresolved Issues.
- J. S. Sperry, V. Stiller, and U. G. Hacke (2003)
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- Vulnerability curves from conifer sapwood sections exposed over solutions with known water potentials.
- S. B. Kikuta, P. Hietz, and H. Richter (2003)
J. Exp. Bot.
54, 2149-2155
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- Vulnerability of Xylem Vessels to Cavitation in Sugar Maple. Scaling from Individual Vessels to Whole Branches.
- P. J. Melcher, M. A. Zwieniecki, and N. M. Holbrook (2003)
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131, 1775-1780
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- The Dynamics of "Dead Wood": Maintenance of Water Transport Through Plant Stems.
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- H. Cochard, S. Forestier, and T. Ameglio (2001)
J. Exp. Bot.
52, 1361-1365
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- The transmission of gas pressure to xylem fluid pressure when plants are inside a pressure bomb.
- C. Wei, M.T. Tyree, and J.P. Bennink (2000)
J. Exp. Bot.
51, 309-316
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- Direct Measurement of Xylem Pressure in Leaves of Intact Maize Plants. A Test of the Cohesion-Tension Theory Taking Hydraulic Architecture into Consideration.
- C. Wei, M. T. Tyree, and E. Steudle (1999)
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- Loss of water transport capacity due to xylem cavitation in roots of two CAM succulents.
- M. J. Linton and P. S. Nobel (1999)
Am. J. Botany
86, 1538-1543
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- Why Canny's theory doesn't hold water.
- J. P Comstock (1999)
Am. J. Botany
86, 1077-1081
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- Canny's compensating pressure theory fails a test.
- V. Stiller and J. S Sperry (1999)
Am. J. Botany
86, 1082-1086
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- Tracheary Element Differentiation Uses a Novel Mechanism Coordinating Programmed Cell Death and Secondary Cell Wall Synthesis.
- A. Groover and A. M. Jones (1999)
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- Hydrogel Control of Xylem Hydraulic Resistance in Plants.
- M. A. Zwieniecki, P. J. Melcher, and N. Michele Holbrook (2001)
Science
291, 1059-1062
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